Model Comparison
Grok-4.20 Beta Reasoning vs MiniMax M2.7Which is better in 2026?
Grok-4.20 Beta Reasoning significantly outperforms across most benchmarks. MiniMax M2.7 is 5.7x cheaper per token.
Verdict: Grok-4.20 Beta Reasoning vs MiniMax M2.7 — which is better?
Grok-4.20 Beta Reasoning (by xAI) and MiniMax M2.7 (by MiniMax) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
Grok-4.20 Beta Reasoning outperforms in 1 benchmarks (Finance Agent v2), while MiniMax M2.7 is better at 0 benchmarks. Grok-4.20 Beta Reasoning significantly outperforms across most benchmarks.
On price, MiniMax M2.7 is roughly 5.7x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Grok-4.20 Beta Reasoning also accepts a larger context window (2,000,000 input tokens), making it the stronger choice for long documents and large codebases.
Choose Grok-4.20 Beta Reasoning if…
- you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
- you process long inputs — it offers a 2,000,000 token context window
Choose MiniMax M2.7 if…
- cost matters — it's about 5.7x cheaper per token
- you want the most recent training data — it shipped Mar 2026
- you need open weights you can self-host or fine-tune
Performance Benchmarks
Comparative analysis across standard metrics
Grok-4.20 Beta Reasoning outperforms in 1 benchmarks (Finance Agent v2), while MiniMax M2.7 is better at 0 benchmarks.
Grok-4.20 Beta Reasoning significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
For input processing, Grok-4.20 Beta Reasoning ($2.00/1M tokens) is 6.7x more expensive than MiniMax M2.7 ($0.30/1M tokens).
For output processing, Grok-4.20 Beta Reasoning ($6.00/1M tokens) is 5.0x more expensive than MiniMax M2.7 ($1.20/1M tokens).
In conclusion, Grok-4.20 Beta Reasoning is more expensive than MiniMax M2.7.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Grok-4.20 Beta Reasoning accepts 2,000,000 input tokens compared to MiniMax M2.7's 196,608 tokens. MiniMax M2.7 can generate longer responses up to 196,608 tokens, while Grok-4.20 Beta Reasoning is limited to 30,000 tokens.
Input Capabilities
Supported data types and modalities
Grok-4.20 Beta Reasoning supports multimodal inputs, whereas MiniMax M2.7 does not.
Grok-4.20 Beta Reasoning can handle both text and other forms of data like images, making it suitable for multimodal applications.
Grok-4.20 Beta Reasoning
MiniMax M2.7
License
Usage and distribution terms
Grok-4.20 Beta Reasoning is licensed under a proprietary license, while MiniMax M2.7 uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
MIT
Open weights
Release Timeline
When each model was launched
Grok-4.20 Beta Reasoning was released on 2026-03-09, while MiniMax M2.7 was released on 2026-03-18.
MiniMax M2.7 is 0 month newer than Grok-4.20 Beta Reasoning.
Mar 9, 2026
4 months ago
Mar 18, 2026
4 months ago
1w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Grok-4.20 Beta Reasoning is available from xAI. MiniMax M2.7 is available from Fireworks, MiniMax, Novita.
Grok-4.20 Beta Reasoning
MiniMax M2.7
Outputs Comparison
Key Takeaways
MiniMax M2.7
View detailsMiniMax
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against Grok-4.20 Beta Reasoning and MiniMax M2.7 side-by-side, then vote on the output you prefer.
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FAQ
Common questions about Grok-4.20 Beta Reasoning vs MiniMax M2.7.